Oesterreichische botanische Zeitschrift (A. Skofitz, 1919)

Oesterreichisches botanisches Wochenblatt ([L.W. Seidel], 1851)

Oesterreichisches botanisches Wochenblatt ([L.W. Seidel], 1852)

Oesterreichisches botanisches Wochenblatt ([L.W. Seidel], 1853)

Oesterreichisches botanisches Wochenblatt ([L.W. Seidel], 1855)

Offer No. 50 : Nov. 7, 1929 price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1929)

Offering. special brassocattleya and brassolaeliocattleya. #16, October 6, 1947 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Clint McDade & Sons, 1947)

Offerings for 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wm E. Attwood Company, Inc, 1932)

Official catalogue of exhibitors. Universal exposition. St. Louis, U.S.A. 1904. : Division of exhibits. Department A. Education [to H. Agriculture; J. Horticulture to P. Physical Culture; R. Livestock.] (For the Committee on press and publicity by the official catalogue company inc, 1904)

Official guide to the museums of economic botany. No. 1, Dicotyledons - Royal Botanic Gardens, Kew. (Printed for H.M. Stationery Off., by Darling, 1907)

Official livestock brand book for the Province of Alberta - Alberta. Brand Office. (Livestock Identification Services, 1994)

Official livestock brand book for the Province of Alberta - Alberta. Brand Office. (Livestock Identification Services, 1970)

Official livestock brand book for the Province of Alberta - Alberta. Brand Office. (Livestock Identification Services, 1990)

Official livestock brand book for the Province of Alberta - Alberta. Brand Office. (Livestock Identification Services, 1982)

Official report ... of the ... convention ... - California Fruit Growers' Convention. (1889)

Die officinellen Pflanzen der Pharmacopoea Germanica für Pharmaceuten und Mediciner besprochen und durch Originalabbildungen erläutert - Kohl, F. G. (Friedrich Georg), 1855 -1910 (Barth, 1895)

Öfversigt af Finska vetenskaps-societetens förhandlingar - Suomen Tiedeseura (s.n.], 1905)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1845)

Ogrody pofnocne... - Strumiffo, Josef. (1830)

Oikos= boletín del Centro de Ecología [UNAM] (Instituto de Ecología, UNAM, 2018)

Oil content of flaxseed, with comparisons of tests for determining oil content - Coleman, David Augustus, 1891 -1938 (U.S. Dept. of Agriculture, 1927)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1966)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1973)

The olive and its products - Bernays, Louis Adolphus (J. C. Beal, government printer, 1872)

The olive in California Varieties, budding, grafting, new methods, and general observations - California. State Commission of Horticulture. (J.D. Young, Supt. State Printing, 1888)

The olive: its culture in theory and practice - Marvin, Arthur Tappan. (Payot, Upham & company, 1888)

The olive tree and its products : and the suitability of the soil and climate of California for its extensive and profitable cultivation - Bleasdale, John Ignatius, 1822 -1884 (Dewey, 1881)

[Olives (Scrapbook)] (1883)

El olivo su cultivo, industria y comercio en la república mexicana - Vázquez, José G., (Oficina tip. de la Secretaría de Fomento, 1898)

Omnium stirpium sciagraphia et icones : quibus plantarum et radicum tum in hortis cultarum, tum in vrbium fossis & muris, pratis, aruis, montibus, collibus, nemoralibus, fluviis, riguis & littoralibus, villis & pagis, spontè provenientium, nomina, figura, natura, natales, synonyma, vsus & virtutes, docentur : cum doctissimorum scriptorum circa eas consensu & dissensu - Chabrey, Dominique, 1610 -1669 (Sumptibus Samuelis de Tournes, 1678)

On the flora of Australia : its origin, affinities, and distribution : being an introductory essay to the flora of Tasmania - Hooker, Joseph Dalton, 1817 -1911 (Lovell Reeve, 1859)

On the history and natural arrangement of insects - Shuckard, William Edward, 1802 -1868 (Printed for Longman, Orme, Brown, Green, & Longmans [etc.], 1840)

On the interpretation of fetch-limited wave spectra as measured by an airborne sea-swell recorder - Barnett, T. P. (Naval Oceanographic Office, 1967)

On the vegetation of the Bermudas - Jones, J. Matthew (John Matthew), 1828 -1888 (s.n, 1874)

On Vertebrata of the Mid-Cretaceous of the North West Territory - Geological Survey of Canada (Govt. Print. Bureau, 1902)

On wind generated ocean waves with special reference to the problem of wave forecasting - United States. Office of Naval Research. (New York University, College of Engineering, Dept. of Meteorology, 1952)

One-hundred-and-sixth annual catalogue of high-class seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.M. Thorburn & Co, 1907)

One thousand pointers for stock raisers; a treatise on twentieth century methods of breeding and feeding live stock ... - Davis, H. O. (Harry Orville), 1877 -1964 (Davis stock food company, 1906)

Onomasticon zoicon, plerorumque animalium differentias & nomina propria pluribus linguis exponens : cui accedunt Mantissa anatomica, et quaedam De variis fossilium generibus - Charleton, Walter, 1619 -1707 (Apud Jacobum Allestry ..., 1668)

Onomatologia Anatomica. Geschichte und Kritik der anatomischen Sprache der Gegenwart, mit besonderer Berücksichtigung ihrer Barbarismen, Widersinnigkeiten, Tropen und grammatikalischen Fehler - Hyrtl, Joseph, 1811 -1894 (W. Braumüller, 1880)

Onomatologia botanica completa : oder Vollständiges botanisches Wörterbuch ; worinn nicht nur alle Kunstwörter übersetzt und erklärt, die bekannte [sic] Pflanzen nach der Lehrart des Ritters von Linne beschrieben, ihre verschiedene Namen nach den berühmtesten Schriftstellern angeführt, und eine kleine Lebensgeschichte der vornehmsten Kräuterkundigen beygefügt, sondern auch die Heilskräfte und der Nutzen, den die Arzney-Wissenschaft, Landwirtschaft, Färberey, Vieharzney- und Scheidekunst aus denselben ziehen, aus den besten Schriften dieser Art und aus eigener Erfahrung erläutert werden von einer Gesellschaft erfahrner Pflanzenkundiger - Gmelin, Johann Friedrich, 1748 -1804 ([publisher not identified], 1774)

Onomatologia botanica completa : oder Vollständiges botanisches Wörterbuch ; worinn nicht nur alle Kunstwörter übersetzt und erklärt, die bekannte [sic] Pflanzen nach der Lehrart des Ritters von Linne beschrieben, ihre verschiedene Namen nach den berühmtesten Schriftstellern angeführt, und eine kleine Lebensgeschichte der vornehmsten Kräuterkundigen beygefügt, sondern auch die Heilskräfte und der Nutzen, den die Arzney-Wissenschaft, Landwirtschaft, Färberey, Vieharzney- und Scheidekunst aus denselben ziehen, aus den besten Schriften dieser Art und aus eigener Erfahrung erläutert werden von einer Gesellschaft erfahrner Pflanzenkundiger - Gmelin, Johann Friedrich, 1748 -1804 ([publisher not identified], 1778)

The Ontario natural science bulletin - Wellington Field Naturalists' Club. (Wellington Field Naturalists' Club, 1906)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank H. Lattin, 1891)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank H. Lattin, 1898)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank H. Lattin, 1900)

Opera e periodicis collata - Vries, Hugo de, 1848 -1935 (A. Oosthoek, 1918)

Operation deep freeze 61, 1960-1961 : marine geophysical investigations - United States. Hydrographic Office. (The Office, 1962)

Theophrasti Eresii De historia plantarum libri decem, Graece : cum syllabo generum et specierum, glossario, et notis - Theophrastus. (S. Collingwood, 1813)

Opisthobranch newsletter - Long, Steven J. (S.J. Long, 1969)

Opisthobranch newsletter - Long, Steven J. (S.J. Long, 1981)

Opisthobranch newsletter - Long, Steven J. (S.J. Long, 1983)

Opuscula philolichenum (J. Lendemer, 2014)

Opuscules de botanique - Clos, Dominique, 1821 -1908 (1859)

Orchard fruits in the Piedmont and Blue Ridge regions of Virginia and the South Altantic states - United States. Bureau of Plant Industry. (Govt. Print. Off, 1908)

The Orchid review (Orchid Review ltd.], 1894)

Orchids and greenhouse plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Julius Roehrs Co, 1916)

Oregon grown superior gladiolus, 1948 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gladland Acres, 1948)

Oregon grown superior gladiolus : 1952 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gladland Acres, 1952)

The organic constituents of higher plants: their chemistry and interrelationships - Robinson, Trevor. (Burgess Pub. Co, 1963)

The organic constituents of plants and vegetable substances and their chemical analysis - Wittstein, Georg Christian, 1810 -1887 (MCarron, Bird & Co, 1878)

Organic materia medica and therapeutics : in accordance with the sixth revision of the United States Pharmacopoeia - Simpson, James Young, Sir, 1811 -1870 (J.H. Vail, 1885)

The origin of a land flora, a theory based upon the facts of alternation - Bower, F. O. (Frederick Orpen), 1855 -1948 (Macmillan and Co., Ltd, 1908)

Origin of cultivated plants - Candolle, Alphonse de, 1806 -1893 (Hafner Pub. Co, 1890)

Origin of cultivated plants - Candolle, Alphonse de, 1806 -1893 (D. Appleton and Co, 1908)

Origin of cultivated plants - Candolle, Alphonse de, 1806 -1893 (K. Paul, Trench, 1884)

Origin of cultivated plants - Candolle, Alphonse de, 1806 -1893 (D. Appleton, 1885)

Origin of cultivated plants - Candolle, Alphonse de, 1806 -1893 (Paul, Trench, 1886)

L'origine et le développement des flores dans le massif central de France; avec aperçu sur les migrations des flores dans l'Europe sud-occidentale - Braun-Blanquet, J. (Josias), 1884 -1980 (L. Lhomme, 1923)

The oriole : official organ of the Somerset Hills Bird Club - Somerset Hills Bird Club (Bernardsville, N.J.) (The Club, 1915)

Florist's journal (How and Parsons, 1848)

Ornamental and fruit trees and shrubs. a guide to Southern horticulture .... 1918 catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Royal Palm Nurseries, 1918)

Ornamental nurseries : fall 1938, spring 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Davenport Guerry, 1938)

Ornamental nurseries, November 1, 1946 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Davenport-Guerry, 1946)

Ornamental plants for southern gardens - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Monticello Nursery Co, 1957)

Ornamental shrubs for garden, lawn, and park planting, with an account of the origin, capabilities, and adaptations of the numerous species and varieties, native and foreign, and especially of the new and rare sorts, suited to cultivation in the United States - Davis, Lucius Daniel, 1826 - (G.P. Putnam's sons, 1899)

Ornamental shrubs of the United States (hardy, cultivated) - Apgar, A. C. (Austin Craig), 1838 -1908 (American Book Company, 1910)

Ornamental shrubs of the United States, hardy, cultivated - Apgar, A. C. (Austin Craig), 1838 -1908 (American Book Co, 1910)

Ornamental shrubs, trees, vines, camellias, azaleas : season, 1947-1948 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Davenport Guerry Ornamental Nurseries, 1947)

Ornamental trees and plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1908)

Ornamental trees, evergreens, shrubs, perennials and rock garden plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Van's Nursery and Landscape Service, 1941)

Ornamentals [1931-32 season] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Glen Saint Mary Nurseries Co, 1931)

The ornithological works of Arthur, ninth Marquis of Tweeddale - Wardlaw Ramsay, R. G. (Robert George), 1852 -1921 (Taylor and Francis, 1881)

Österreichs Holzpflanzen = : Plantae lignosae Imperii Austriaci : eine auf genaue Berücksichtigung der merkmale der Laubblätter gegründete floristische Bearbeitung aller im Österreichischen Kaiserstaate wild wachsenden oder häufig cultivirten Bäume, Sträucher und Halbsträucher - Pokorny, Alois, 1826 -1886 (K.K. Hof- und Staatsdruckerei, 1864)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1905)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1906)